He grasps at Ivan's shirt almost in desperation when the man's hand starts moving. Uncomfortable is only a small part of this, a very small part that has him shifting beneath the man. It's entirely out of inexperience. He trusts Ivan, wouldn't be naked in his office if he didn't. His breathing turns into a light pant as he dumbly nods.

"I, ah, I'll tell you." He swallows thickly and there's an underlying please don't stop to that. He feels stupid adding this and his voice is barely a murmur, but the man should know, "I'm enjoying this."

Somewhere in the back of his mind, he knows he won't have trouble remembering this later. The feel of Ivan's hand -- slow, stead, right. It does feel a lot nicer and he's not sure if it's the technique or the fact that someone else is doing it for him.