Alien-Vampire Townie?

Maybe the free love NAP is activated? This NAP offers a lot of confusion, when you see this animation a lot, although I have never seen a romance bar pop up between those sims and the other sim react with digust and decline if your sim want to kiss his neck in return (but the other sim did this autonomously to your sim right before). Although it's nice to have this NAP when you are playing a hippy community or polamerous couples, because you don't have to deal with jealousy between the couples. It's somehow my favorite NAP at all, maybe the only one I use regularly.