My BC muscle is tender to the touch

I spent some time today reading the article about locating the BC muscle.

I placed a finger beneath my scrotum to make sure I could isolate it.
It’s a challenge for me to activate the BC muscle down there.

Anyway, this muscle is extremely tender to the touch, like it’s injured.
I’ve had back surgery and shoulder surgery so a lot of my body is tender to the touch.

Does anyone else feel pain and discomfort when touching the BC?
It seems to me like I should start massaging this muscle to reduce the tenderness.
Professional massages have improved my back tremendously, but I doubt any licensed therapist would be willing to massage my BC muscle for me. It’s too close to being a sexual massage, which is against the law where I live.