at your cervice
What a horny stud would like a hot chick to always be.
Guys, come on --- you cannot expect all da gals to whom you're sexually attracted to always be "at your cervice"... they may be either tired, sore "down there", on their periods, not "in da mood" at da same time dat you are (which in your case, of course, is ALWAYS), busy with important matters, etc. You need to respect dem about dat --- be grateful dat dey are indeed actually willing to spread their legs for you even as often as they do, and leave it at dat!