http://www.scientificblogging.com/alter ... ence_study
"Relationship closeness was also assessed immediately after the S&M scene took place. Subjects who reported that their scene went well, indicated that they felt closer to their partner afterward. This isn't surprising because even though S&M often includes hot wax, skin branding and enemas, intimacy is actually a big part of S&M; tops really do care about their bottoms as illustrated in this touching observation of human kindness:
...the top noticed that the bottom, who was bent over a table, was moving one foot around, unable to rest it evenly on the floor. The top paused the scene activities and placed a pillow under the bottom's foot to relieve the discomfort."
so now u can harass your spouse with scientific evidence that it will make you two closer