I'd say about 90% of what I'm attracted to in porn and games doesn't carry over to RL. Furthest from vanilla I'd stray in the real is probably some light BDSM or consensual rough sex/dirty talk.
Maybe not grossed out, but personally it becomes a bit of a turn-off once each individual breast passes 75% of the woman's chest width. Proportions are everything, a skinny girl isn't going to look near as sexy with bimbo tits as she would with modest breasts.