I'll pretend this is a serious question. But here is the thing - if you don't know what you want, how can we know?
So anyway, I believe MI is available - just not in London. Are you looking for suggestions in London area only? (If so, best to ask admin to move this thread). Lizzy and KDD also are London based. Or maybe book Kaz B - I hear she will tie you up, beat the crap out of you and fuck you in the ass with a dildo. But if you can roam further, there are many more suggestions. Done a party? Maybe try TPC and then one of the cheap ones. Maybe a TGirl? A MMF? A MFFFFF in a limo?
Others have said that escorts wont teach you. But that doesn't matter - you can learn by doing. Look on one of the bucket list threads for more ideas. Go for it. And please report back.