as
@Mariposa Electrique has said. the titty skittles haven't completely zapped Chris' sex drive, and personally i like to believe part of the reason he doesn't pass for shit is he's not taking his hrt properly maybe only taking half dosage every other time, or whenever it's convenient for him....well that and the fact that no matter what chris will always be a fat, ugly, unfuckable, no matter what he does.
so maybe there's a chance his sex drive is still there...fertility not so much but it's not like he cant get thirsty over someone sending him pics. It's just that countless years of getting cat fished and tricked into sending nudes and sex tapes of his own white naked ass have made him somewhat reluctant to try asking anyone on a date anymore. So hence why he ended the love quest and settled for fucking his imagination. Even Chris for as dumb and hapless as he is finally realized there's no way in hell he'd be sexually appealing to anyone who wasn't a prostitute