Why do girls tense up when you grab their ass while making out?

[Viktorthegreat]

Every time I am with a girl and we were making out, I like to grab their ass. And every time I do that, they tense up in a way. So that on purpose?

[AnonymousGlRL]

Different people have different comfort levels. Some girls may be uncomfortable getting their ass grabbed while making out and others may enjoy it. If she tenses up that usually means she is uncomfortable with you touching her there.

[Anonymous]

Because their ass is theirs, not yours and no one usually touches it. I about slapped my boyfriend the first time he grabbed my ass. Make sure you two have a solid enough relationship before you go about ass grabbing.

[beerY33]

Maybe they're uncomfortable... That's not a super normal thing to do.

[Anonymous]

Yes I can totally tell if she's good at sex after only dry humping. If she bounces back, she is good.

[ChebMami]

Because they feel like you might shove something up their behinds.

[alyssaishere]

Because it is unexpected! After a few times they should get used to it.

[harveykinkle]

Because I hate it when guys do that!