secure attachment in a relationship makes any type of sex better.
Sophie do you think that your bdsm would be better if you allow Kaz to have a trusting relationship with L first so that you and Kaz can both enjoy L?
In that way nobody loses allow Kaz the intimacy on a platonic level with L until she's comfortable and allow a little vanilla sex first and then when your with L for a while then perhaps Kaz will be comfortable with that?
What do you think Kaz?