Treating my ex turns into touching

My ex (f26) had one of the sexiest bodies I’ve ever seen, petite girl at 5’2” and big tits and she went gym every day so good arse and was lean.

When we started talking again after we broke up we were both in relationships so it didn’t start sexual but started small. She ended up telling me how he never made her feel sexy and she wanted lingerie to spice things up for them but he never offered to buy anything after her hints. I suggested I’d buy her whatever she wanted as long as I could see her in it, meaning it as a joke but she said deal straight away.

First few times I bought her stuff she’d send a couple of body pics but eventually started getting bolder and would pose in these tiny outfits. We started talking more and more sexually and she’d tell me what she was doing in the lingerie and how good it felt.

One time I was ordering for her and ‘accidentally’ ordered an outfit she really wanted to my flat by mistake. No worries for her at all, she’ll come pick it up after work one day. I did try to be the perfect gentleman and offered to leave the room whilst she was going to try them on but she said ‘don’t be silly, it’s your bedroom get comfy’ and stripped off with her back to me and bent all the way over to take off and put on the panties. She turned around, walked over told the bed and I couldn’t help but touch her body and grab her arse. This was the first time since we’d broke up we’d got this far and the tension was building up so much, she let my hands run all over her and I could feel how wet she was through the new panties I’d just bought.

The next few purchases were her first ever toys with the same deal in place….