A 24-year-old man who has been convicted of masturbating in public at least five times in the past two years was sentenced to 2.5 years in prison Friday.

William James Wimberly Jr. was arrested most recently in February, after he was spotted strolling the aisles of a Portland baby clothing store while masturbating in front of two women.

Just 11 days before that arrest, Wimberly had been sentenced to probation for masturbating in front of strangers in a string of incidents.

Authorities say that in the past two years, Wimberly has exposed himself while at the Hollywood Library in Northeast Portland, while sitting on a bench next to a woman at the Parkrose Transit Station and while inside businesses in the Hawthorne, Belmont and Sellwood neighborhoods. In all, he's now been banned from stepping foot in 11 businesses.

Court records say Wimberly suffers from fetal alcohol syndrome.

Wimberly's defense attorney, Downing Bethune, said Wimberly has a low IQ, and had never really been given a chance to go through sex offender treatment to treat his problem.

Bethune said that before Wimberly’s most recent crime at the baby clothing store on Feb. 26, Wimberly was ordered on Feb. 16 to live in an adult foster home under round-the-clock supervision. He also was ordered to go to sex-offender treatment. Wimberly was willing to go, but no treatment was immediately set up for Wimberly and he waited in the foster home doing nothing for about 10 to 11 days, said the defense attorney, Bethune.

Bethune said that after languishing at the home, his client crawled out a window and went to Baby Goods, near Southeast 165th Avenue and Division Street, where he exposed himself to the women. Wimberly returned the next day to the same store, and police arrested him.

After serving his prison sentence, Wimberly will be required to go through sex offender treatment.

-- Aimee Green