Thanks to 50 Shades of Grey and the hype surrounding it, couples are finding new ways to enjoy sexy time in the bedroom. Some couples even credit the trilogy for saving their sex lives. So if you want to channel your inner Christian Grey and Anastasia Steele, then you may look to their dominant-submissive relationship for inspiration. While what's going on with this fictitious couple is pretty out there for regular people, incorporating a few aspects of that lifestyle into your bedroom routine can spice things up and may be just what the doctor ordered for flagging desire. So how should you start? Any situation in which one partner will be submissive to the other requires complete mutual trust. BDSM stands for bondage, discipline, sadism and masochism - so there is a very real element of violence to this type of role play. It's not the best idea to simply start whacking away at a partner during sex or do anything a partner doesn't want. So planning is key.