That was...not something Derek had thought of, to be honest. His mouth opened and closed, brow furrowing as his mind processed it.
"You're enough as you are," he said, finally. He worked at Isaac's fly and pulled out his cock. "Always so good for me," he breathed, teeth nipping at Isaac's skin. "I've wanted to...I haven't with anyone, but...I've wanted. I didn't know...." he swallowed. He never wanted to ask Isaac to do things, knowing that he would say yes even if he had no interest in it.