Hiya 99skylinegtr!! 
I'm guessing the weekend in question has passed. 
😉 So let me start by saying whatever happened, happened regardless of whether it reflected anyone's advice, including mine. 
😱
Still, some thoughts. 
Following up on Frankenfeathers words of wisdom, can i ask what has made you so interested in your G/f's friend's feet? You don't have to answer, i'm just asking rhetorically.
I guess what i'd add, is that there's good clean fun in tickling friends. Heck i sure have been on the receiving end of that enough times. 
But i have to confess it sometimes did get a little awkward when guys would tickle me without my b/f-at-the-time being a part of it. I don't mean, the b/f in question had to do the honours personally but generally the b/f guy felt better about it all if he was somehow part of the act. On occasions when that involvement wasnt' there it usually involved some minor damage control after the fact.
I don't know, maybe i just kept getting involved with the wrong guys. 
🙄 It would make sense, since i'm not with any of them now - though in each case it's for unrelated reasons.
In the end, what happened to me wasn't your situation. You know best how your g/f will react - especially now. 
😛
But I throw that out just as something to think about. 
🙂
Hope that helps some. Hope everything worked out as planned. 
😀 Sounds like you had a really exciting opportunity come your way. 
Many blessings, and welcome to the Forum!
Chickles_
🙂