No he is not gay.He is married to Lois Pewtershmit *Or however u spell it*And they had 3 kids *Stewis,Chris & Meg*
I think u may b refering 2 the time that Peter's doctor was testing some shots and gave him the gay shot and he started 2 act gay.But. it wore off just b4 he had sex with a bunch of gay guys.*Which his new Gay friend planned 4 his birthday*
In one episode he was injected with the gay gene, but he turned straight again, plus he LOVES Lois, so, normally, FUCK NO, PETER GRIFFIN IS NOT GAY!!!! WHAT IS WRONG WITH YOU?!?!
No, he just acts gay in episodes for the humor of it. and he's married to lois so that would be a no, and half the time he doesnt pay attention to her. it seems the writers think its funny until it turns gross. in one episode when peter was injected with a gay gene, he became gay for alot of the time but turned straight again when it wore off.
Peter is probably bi, in season 11 episode 12 "the giggity wife" when him and quagmire had to have sex quagmire wasn't into it and his wife 说 "you're obviously not gay" Peter 说 "well I'm something because I've been at full sail for the last half hour" meaning when him and quagmire were going to have sex he was turned on