Shameless Johnny Manziel flew to Mexico for a booze and sex-filled vacation just a week after allegedly beating up his ex-girlfriend, Daily Mail Online can reveal.

Manziel, 23, the subject of a criminal investigation by the Dallas Police Department into his alleged assault on Colleen Crowley on January 30, flew to party hot spot Cabo San Lucas on a private jet and stayed at a plush $2,500 a night villa.

The under-fire NFL star was joined by four friends for the six day sunshine break, sources told Daily Mail Online.

And sources close to the Cleveland Browns quarterback say the all-male group threw wild parties at the luxury villa inviting as many as 15 girls a time to join them.

Witnesses say the five-bedroom property was littered with bikini-clad girls hanging by the pool throughout the week at the beginning of February as the group enjoyed themselves.

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A Canadian beauty posted this picture and a message 'I tried to learn how to throw a football' on her Instagram. Is that the famous footballer in the pool at his villa? It's where he and his buddies stayed and entertianed at the beginning of February

Manziel went to Cabo without his then girlfriend Colleen Crowley in 2013 too (above). He has long favored Cabo San Lucas to do his unwinding and pretty girls seemed to be part of the lure. But this time he chose to party hardy in the week following the night he allegedly beat up his ex

Kara Vaninetti (above) and her girlfriend Alison Ireland, both from east Canada, flew in on February 6 and posted several photos of themselves frolicking by the villa's pool

The luxury villa called Villa Renata was featured on the front cover of Florida Design Magazine in the summer of 2014 because of its impressive location and interior design

'Well, Mexico was lit, said Kara Vaninetti on her Instagram post

Friends Alison Ireland and Kara Vaninetti, both from east Canada, flew in on February 6 and posted several photos of themselves frolicking by the villa's pool.

In one shot blonde Kara is seen throwing a football to a man in the water, who strongly resembles Manziel.

Johnny's ex-girlfriend Colleen Crowley is at home nursing her woulds after attack, friends say

To the left of the shot a line of empty beer bottles stands as evidence of a party the night before.

In other snaps the girls pose in tiny bikinis or are seen taking a dip.

The pair, both in their early 20s, was careful to be discrete leaving out any obvious shots of their famous male host Manziel.

Kara also posted a video of her and her friend Alison enjoying drinks at Medano Beach, a popular party spot where it's believed the whole group enjoyed a drinking session.

Revelers spill out of beach-side bars and bachelor and bachelorette parties fill the sand playing drinking games.

Loud music pumps all day long and local beach-sellers openly offer tourists cocaine and marijuana alongside novelty hats and sunglasses.

Kara tweeted on her return to Canada: 'Well Mexico was lit!'

In another tweet she wrote: 'Fairly confident I lost 12 years off my life from that trip to Mexico.'

Both women refused to comment on the trip when contacted by Daily Mail Online and removed any evidence of the vacation from their social media pages.

One source said Manziel's male friends - including a real estate agent and a tall, black, muscular man who resembled one of Manziel's NFL colleagues – came fully prepared for the sex-filled vacation with a stash of condoms.

Johnny partied like a rock star with his pals in Cabo in 2013 and sources say the same was true this month

Alison Ireland tweeted that she was 'Fairly confident that I lost 12 years off of my life from that trip to Mexico.' She and Kara, both in their early 20s, were careful to be discreet leaving out any obvious shots of Manziel

The source said: 'The guys had so many condoms that they were blowing them up into balloons and throwing them around the villa for fun.

'They would pick girls up from the beach and invite them back to the villa. They had one party and there was 15 girls there.'

And the source, who asked not to be named, said Manziel – who you'd expect would be keeping a low profile after a series of shameful incidents put his NFL career in jeopardy - seemed to especially enjoy himself.

'Johnny didn't seem to have a care in the world, all the troubles he has back in America seemed to melt away once he arrived in Cabo and he really let his hair down,' the source said.

'He was surrounded by his boys, attractive girls and plenty of alcohol, he was having a good time.'

It's believed the group spent over $2,000 on food and snacks for the villa and even hired a private gourmet chef to prepare a meal on one of the nights.

Manziel and his friends stayed at the villa for four days before moving to a second property for another two days.

The source said the owner of the property wasn't impressed by the conduct of the guests.

'There were a lot of people coming and going and they left the place in a mess, there was beer bottles and food wrappers everywhere,' the source said.

The property, called Villa Renata, is located on the Golden Corridor, just two miles north of downtown Cabo San Lucas in the private gated community of Santa Carmella.

The $2,500 a night villa boasts views of the Sea of Cortez and Pacific Ocean and has a large swimming pool, hot tub and a private roof terrace. One tourist website described the property as 'majestic' and a 'modern hacienda'

Manziel and his friends stayed at the villa for four days before moving to a second property for another two days. The source said the owner of the property 'wasn't impressed by the conduct of the guests'

The designer house was featured on the front cover of Florida Design Magazine in the summer of 2014 due to its impressive location and interior design.

It boasts views of the Sea of Cortez and the Pacific and has a large swimming pool, hot tub and a private roof terrace.

One tourist website described the property as 'majestic' and a 'modern hacienda'.

It said: 'You can unwind and ease away any stresses by slipping into the hot tub and separate pool, or detox in the sauna and steam room.'

Last week we revealed how Manziel's ex-girlfriend was left in tears when she discovered the troubled NFL star was partying at a wedding in her hometown - just two weeks after he allegedly struck her so hard her eardrum ruptured.

Crowley – who is still swollen and partially deaf in her left ear – was 'mad and upset' when she saw dozens of photos of Manziel on social media living it up and smiling with friends.

'There were a lot of people coming and going and they left the place in a mess, there was beer bottles and food wrappers everywhere,' a source told Daily Mail Online

The property, called Villa Renata, is located on the Golden Corridor, just two miles north of downtown Cabo San Lucas in the private gated community of Santa Carmella

Manziel was a groomsman for old Texas A&M teammate and current Tampa Bay Buccaneers wide-receiver Mike Evans and even gave a speech at the wedding.

The star was seen in a series of photos in high spirits following the nuptials in Houston, Texas on Saturday, February 13.

Smartly dressed Manziel, who was sporting a goatee beard, posed with several different groups of guests and was seen watching Evans' wedding dance with new wife Ashli.

In a video posted on Twitter by wedding guest and Seattle Seahawks running back Christine Michael, Manziel is seen rapping Drake's 'Back To Back'.

According to a close friend of Crowley, a model and student at Texas Christian University in Fort Worth, the 23-year-old was devastated when friends pointed out the photos and video.

Crowley is angry that Manziel is seemingly getting on with a 'normal life', despite being investigated over the alleged attack.

She has accused Manziel of threatening to kill them both during a heated row on January 30 in Dallas and says she feared for her life.

It's claimed Manziel dragged her by the hair during the fight and hit her so hard she lost hearing in one ear.

The alleged attack ended at Crowley's apartment only after she pulled a knife out of her kitchen knife block and advanced toward him.

Manziel fled and Crowley ran for help to a neighbor's house.

The exterior of the Villa Renata house where football star Johnny Manziel stayed with his friends

It has been a tumultuous few weeks for Manziel, a 2012 Heisman Trophy winner whose professional career has been marred by headlines about his drinking and hard-partying.

Manziel is due to be dropped by the Cleveland Browns at the start of next season as a result of a string of off-field controversies and a stint in rehab.

Last week Manziel's father spoke out to say he fears for his son's life.

'I truly believe if they can't get him help, he won't live to see his 24th birthday,' Paul Manziel told The Dallas Morning News.

Manziel's father said the family has made two unsuccessful attempts to get the player into a rehab clinic.

The star agreed to go to the Enterhealth Ranch addiction facility in Van Alstyne, Texas, but he would not stay, his father said.

He also tried to have his son admitted to Carrollton Springs Hospital, but Manziel was allowed to leave.

Carrollton Springs is a psychiatric and chemical dependency hospital.

Manziel Sr said he told a Denton County Sheriff officer he believed his son to be suicidal.

Manziel spent 73 days last winter in a Pennsylvania treatment center specializing in care for alcohol and drug dependency.

Detectives from the Dallas Police Department began investigating a complaint of a domestic violence assault - relating to the January 30 incident in which Manziel is a suspect - on February 5.

A spokesperson said a statement: 'Up to this point in the investigation, detectives have continued communicating with the complainant, interviewed witnesses, received medical records from the complainant, and obtained video from surveillance cameras.

'Detectives are continuing with their efforts to fully investigate the facts of this case.'

The spokesperson said that the investigation was 'ongoing', adding: 'As of today, there has been no determination as to what type of charge, if any, will be filed against Mr. Manziel.'