Three years ago, I saw a guy get a BJ in broad daylight while he was lying on a hammock near the pool of one of the hotels at Disneyword. Oh, and he was getting it from a woman. My point is that poor taste and obscene behavior transends sexual orientation.
But when deviant behavior is at the core of one's existance, such displays are more common. Witness many of the men's restroom in public parks.
I wish someone had told her "I hope you're doing that for everybody"!
The only difference is, in MOST cases, the heterosexual couple is arrested for public indecency. Homosexuals are not arrested, in fact their public displays are ignored by law enforcement.