Help me choose a pose please~ (Patreon)

So I'm working on the next NSFW animation, and i'll be a romantic blowjob on a shy cute boy from a not so shy, but still so cute guy~

Also there is plainty of blowjob for big penis, so i want to make one for smaller size (not to say it as anything to do with behaviour, okay! Size doesnt' matter!)

Anyway, help me chose what give the best body language to fit that dynamic between A, B or C.

Personaly i think C is not really fitting for this situation... But A and B I don't know...

Also, please, understand it's not final clean pose, so it doesn't look perfect yet, it's just a sketch !

Thanks~~