The first time they do the do, Elsa just lays herself down on the bed on her stomach and waits for Anna to get on.
what if though it’s sort of mating season and elsa’s in heat (sort of) but anna doesn’t notice the signs (ofc) and elsa doesn’t know how to communicate what she wants. she just knows that she likes anna (innocent bby :’3) and ofc anna doesn’t think to.. uhh teach elsa about sex? it’s hard enough to keep up with elsa’s antics. like it starts out subtle like elsa sorta humping anna randomly (elsa stop that we’re in the park, you dont hump people’s legs jfc you’re human now)