smooching

Kate had a smooch with a very attractive young man at the Christmas party.

凯特在圣诞节舞会上和一个帅气的小伙子亲密相拥，跳了一曲慢舞。

Didn't I see you smooching with Mark at Kim's party?

难道我没看见你和马克在金的聚会上搂抱亲吻吗？