Bruises on the Penis?

My lovely wife, who holds the key, let me tend to her and brought her through several powerful orgasms today. She then kept me in a long period of training and discipline. For part of it, she took off just my cage, but I actually asked to be locked back up afterward. We went shopping this evening, and while we were out, I began feeling a dull throb right in the penis itself. When I mentioned it, she said we’d look at it when we returned home unless I felt I couldn’t wait (luckily, both keys are safe with her). Once home, we checked everything; there are several small spots on the head of my penis, looking like possible burst blood vessels. Picture a tiny bloody speck in an eye—they’re very small, almost as if dotted there with a Sharpie marker. It’s not too painful, but I’m fairly certain it’s bruising from today’s session. I was really trying hard to tear through the stainless steel welds with my member lol. Has anyone else had this happen? It isn’t overly worrying; I trust it will fade away, but I’m curious if it’s a common occurrence after such intense pressure on one specific area. Regardless, there is absolutely no way I would have swapped our dynamic for anything today. It was truly magical. We are really enjoying each other again.