I could go into a long diatribe about why these girls are here and psychologically/emotionally most of them have esteem and abuse issues, blah, blah, blah.
Lexapro is an antidepressant/anti-anxiety in the SSRI class of medicines. It can cause a decrease in sex drive and ability to orgasm, but the side effects are not as sever as prozac.
Good news for you hair trigger guys, it will help you last longer!
Concomitant drug and alcohol use lessens the effectiveness of Lexapro as an antidepressant. I have no data on its decrease in willingness to "suck dicks", specifically.
Maybe I can apply for a research grant to test that theory!