Teasing my subby friend [FF]

So I’ll start by telling a little about both of us. We have been good friends for a long time and we are both bisexual. She was initially very vanilla while I’m super into bdsm,femdom and anything leaning towards those types of kinks. I’ve been slowly introducing her into those kinks and she has been very receptive. I’m a switch and she is a sub so we match up very well.