This is like the seated piriformis stretch in the Limber 11. The pigeon stretch in yoga is brutal (the girl with the arched back).
I’m going to the Stretch & Roll class at the Y tomorrow. It’s a half hour of foam rolling and a little bit of stretching. My chiro went to work on my adductor and shoulder today. The adductor stuff hurt. I was gritting my teeth during parts of it.