@ShanH of course, you're getting all boastful and that naturally makes me curious! The challenge? Well sounds like you could have already completed it by handling whatever monstrous dildos you've been fucking? It could be to take another hard fucking, even when you're already so well used and sore? Or it could be to be gently but persistently tongued until you cum all over again, but then for that tongue to keep on working you and see how many more you're capable of?