Mainstream F/F?

[Wesker28]

You be the judge; it looks to me like she's trying to tickle the other girl, and after trying her sides resorts to trying to attack her foot.

 

[milagros317]

Looks like a tickle attack to me. Thanks for posting the photos here. 😀

 

[3xPIN]

I don't think this is mainstream; it is definitely an attack of sorts. I would say, 30% chance tickle attack, 50% squash attack and 20% instigating a make-out session.