An estate agent on trial for killing his wife after a lesbian affair claims she would 'nearly always' belittle the size of his penis and made him feel like he 'wasn't even a man'.

David Clark, 49, is accused of knifing his South-African born wife Melanie, 44, in the chest before dialling 999 and admitting killing her.

The pair had argued in a Prosecco-fuelled rage before Mrs Clark's death at their Worcestershire home on New Year's Eve last year, his trial heard.

Giving evidence for the first time at Birmingham Crown Court, Clark, of Bromsgrove, told jurors his wife's taunts made him feel 'worthless, inadequate and sad'.

She would threaten to headbutt him and 'bust his nose' and would comment on the size of his penis 'almost every night', they were told.

David Clarke, left, is accused of stabbing his wife Melanie, right, to death on New Year's Eve at their home in Bromsgrove, Worcestershire

Clark became emotional and had to be handed tissues when describing one incident, before they were married, involving the 'particular' way he had organised his work shirts by colour.

He said today: 'The one thing I did remember, was just my work shirts were in order, all neat.'

Breaking down, he continued: 'She mixed them all up.

'She would change things, on purpose, move my stuff so I couldn't find it. She didn't really care.'

Describing her 'taunting' behaviour, he added: 'She'd call me names, taunt me and stuff.

'She'd get right up to me, to my face, and she would like to say 'I'm going to headbutt you, bust your nose'. She was just angry.'

Asked how she would make him feel, he replied: 'Like I wasn't worth it - like I wasn't a man.'

Mr Clark also claimed his wife had battled with an alcohol problem since 2015 and was 'not pleasant to be around' when drinking.

He said: 'It never stopped. It was almost every night.'

Birmingham Crown Court heard Mr Clark was angered by his wife who criticised the size of his penis and also admitted having an affair with a friend's female daughter

Police were scrambled to the couple's home at 11.52am on New Year's Eve last year after Clark told the operator: 'She f****** did my head in,' the trial previously heard.

Jurors were told the couple were married for 10 years but had a turbulent relationship.

Mrs Clark had a lesbian affair with one of their friend's daughters and taunted her husband about his small 'd***'.

Clark's barrister today asked him about about a WhatsApp conversation, concerning a sex toy and his penis size, between him and his wife on January 18, 2016.

Clark said to her: 'Hey, you could use a small one and think of me.'

She replied: 'Lol, yes - yours isn't that small.'

Alisdair Williamson QC, for Clark, asked him: 'What is she talking about Mr Clark?'

She said: 'I don't remember the situation but I think she was on her own and using a sex toy.'

Ms Clark was originally from South Africa and had four children in previous relationships

Asked what he thought she meant about 'yours isn't that small', he replied: 'That she was talking about my penis.'

Mr Williamson then asked: 'Is that something she often talked about? What would she say about it?'

He replied: 'Comments in conversation, she would nearly always refer to it. Just say it was small.'

Asked how that had made him feel during their relationship, he replied: 'Inadequate. I felt so sad.'

Mr Williamson then asked if his wife had ever made him feel inadequate in other ways.

The 49-year-old, who was born in South Africa but has a British passport, said: 'She would taunt me a bit, and just say horrible things.'

He added: '[I felt] like I was worthless, like I didn't have a say. I did feel like a puppet.'

Jurors also heard how the wife of one of Mrs Clark's former work colleagues emailed him in February 2016, claiming Melanie had broken up their marriage after having an on-off affair with her husband.

The couple were with friends on New Years Eve before leaving to return home at 10pm

Clark told the court that when confronted, his wife had 'denied everything'.

Mr Clark said: 'At first I did not believe it. But I came to believe that Melanie had had an affair with the man.

'We agreed that we would tell the other before sleeping around before we were married.

'I confronted her. All I wanted was the truth. I wasn't horrible or nasty to her. I did not raise my voice. I just wanted the truth.

'I still love Melanie and I have forgiven her.

'After I moved back in with Melanie following the split, she was suspicious of me whatever I did.'

He said: 'I used the term 'you can't cry over spilt milk'. I still loved her, and I'd forgiven her.'

The court also heard Mrs Clark had been so paranoid about her husband's whereabouts she installed a locator app on his phone which tracked his every movement.

He said: 'My wife put it on my phone. I did not really know how to turn it off.

'I was having problems with my phone. I did not have enough memory and I had to delete some apps.

'My wife checked my phone to see what I had been doing. She wanted to know why I had deleted the locator.

'She was really, really angry. She was so cross with me.'

Forensic investigators are pictured scouring the couple's Worcestershire home early this year

Jurors previously heard prosecutors allege that Clark tried to kill himself with gas and even begged police officers to kill him after his wife died.

The day of her death was also his birthday - eight minutes into his 49th year, the court was told.

Prosecutor Benjamin Aina QC previously described the aftermath of the stabbing.

He said: 'It was about 10 minutes before midnight that David Clark telephoned the emergency services.

'He says to emergency operator 'I'm sorry, I've killed my wife. My wife started being s*** again.

'I'm totally in love with my wife. She f****** killed me and I had to stop her. I can't believe I f****** did it. I'm going to do myself in. I love my wife so much.

'She f****** did my head in. I'm f******* devastated. I don't know why I did it'.'

Mrs Clark was found lying in the master bedroom, where she had been sleeping without her husbands for a couple of months. A knife was found near her body, the trial heard.

Clark denies murder. The trial continues.