One-time UFC welterweight fighter Joao Perini (4-1) has been charged with molesting teenage boys, according to the San Mateo Daily Journal.

Here's a snip:

Pierini noticed they [the boys] had beer and invited them to his studio ... [he] reportedly gave the boys his keys, told them to put the beer in the refrigerator and said he'd meet them there. As they drank beer, Pierini offered the boys massages. The first victim later reported Pierini massaged his genital area until he got up and rejoined his friends without sharing what had happened. The next day, he asked the other boys if they had a similar experience and they agreed. The boys told the first victim's father and they reported the situation to the Half Moon Bay police.

Perini — who operates Brazilian Jiu Jitsu of Half Moon Bay in California — is a 25-year jiu-jitsu veteran and 3rd degree BJJ black belt, according to his Web site.

Back in 2002, he lost to Yves Edwards (29-11-1) via technical knockout (injury) at UFC 37.5. It was his last professional fight, according to Sherdog.com.

And if the allegations stick, hopefully his days of running a jiu-jitsu school are also done.

Scumbag.