Can you make a video of both of you rubbing feet together (sole to sole) while you are both spitting on your soles, mixing your spit together through your soles.
What I mean by rubbing feet is playing 'sole to sole' footsie with eachother, I would be totally okay with a whole video of you two playing footsie (with both of your spit) for the whole time. As for the roleplay, can you be best friends. And just get into playing footsie naturally. And get more and more excited with it without any of you talking. So start out naturally and then slowly get more excited. Doing it on a couch would be nice, with both feet on the air. Moan a lot!
Ps please only touch feet sole to sole