Reply: Waxed my friend and then saw her masturbating

My friend (both 24f) texted me on Friday saying she’d lined up a last minute date and really needed a bikini wax. I do this for a living and usually have supplies at home so I told her to come over. I’ve done her waxing before but usually in the salon where I work.
I set up an area for her to lay down on on my bed and she stripped from the waist down. We talked through what we wanted and decided on a Brazilian with à landing strip.
I noticed her clit was a bit swollen at first and then as I did the wax I could see she was getting a bit wet. She moaned a few times and kept apologising, but I said it’s fine and I’d try be my gentle.
When I finished I told her to take her time getting dressed and I went out of the room. I walked back in a minute later expecting she’d be dressed but she was laying back on the bed with her legs wide open, furiously rubbing her clit, eyes closed. I froze and watched her for a minute and then backed out of the room. I stood nearby where I was out of sight but could still hear her rapid breathing. Then I heard her breathing getting heavier and knew she was having an orgasm.
She came out a few minutes later looking a bit flushed.
As soon as she left I got out my vibe and made myself cum over and over thinking about her gorgeous pussy that had cum on my bed.