felt so good last night

my new client and i were just hanging out after our session. she mentioned she needed to stretch her hips for a dance performance next week. we got a bit intimate, helping each other out with some stretches that involved some pretty close contact. it felt like the chemistry was off the charts. by the end, i couldn't resist asking if she wanted to take things further. surprisingly, she said yes and we ended up doing more than just stretching. wondering if its common for a trainer and client to go beyond boundaries like this or if we should have kept our distance? thoughts?