Yeah, lovey dovey types do that. .....As awkward as this sounds, I can probably help you understand how intercourse works...
Gosh that's awkward, but just know that it likely doesn't mean full on sex, cause THAT is the awkward part ...so rest easy, I doubt anyone's getting that far ^^'
EDIT: Oh you meant Girl and Girl, WHEW, that makes it much easier ...lmao ..