I can understand the expression of "tie the knot", but this isn´t what I was expecting XDc

A commission for  Cryptic796 where his dragon character, Rhogar, has a deal with a fairy that consist in her offering him magic powers, but in exchange for a price. And what price is that that she´s asking for him? Well, it appears that this fairy has a peculiar taste of some "games" and as long Rhogar keeps his end of the deal, he can use her magic powers as his for whatever situation. In the meantime we have him doing his part of the deal, even though he doesn´t seem to be pleased with XD