Title probably misleading but had bet on flick of coins 10 years ago with girl from work, anyway I lost 3 times and ended up her lifetime slave. I'm into it, for her it's very sporadic i.e. sometimes she leaves it 4 months or so, but she's had me do her ironing, washing, clean her car, polish her shoes, paint her toe nails and when drunk suck her toes, kiss her feet etc. She's offered me 10 year anniversary get out bet, which I wouldn't mind losing if it ended up getting more sexual, but we are friends and all been light hearted enough so far, what is best way to broach this, develop it further?