[The logical, detached part of Robert's mind, which even in this situation is quietly analyzing, taking in data - always thinking - notes this state of affairs. Now, they're definitely on the "...huh" side of exuberant for Robert, but as long as those fists aren't hitting him he has little objection. Still, he's surprised at how violently Don's body reacts to something relatively simple and gentle...
Curiously, Robert involves his lips more directly, tilting the shaft so he can take parts of the tip into his mouth and suck on them, essentially tracing the circumference of it with his lips and tongue.
The amount of semen coating his face and hands, at this point, is probably almost obscene, but save a nagging voice in the far reaches of his mind whining about how he'll have to clean all this later, he really doesn't care.
Oh, and his own erection is practically dripping pre-ejaculate with excitement; he may or may not be subtly rubbing it against Don if they're close enough or the position of all this allows it.]
[Action]
Curiously, Robert involves his lips more directly, tilting the shaft so he can take parts of the tip into his mouth and suck on them, essentially tracing the circumference of it with his lips and tongue.
The amount of semen coating his face and hands, at this point, is probably almost obscene, but save a nagging voice in the far reaches of his mind whining about how he'll have to clean all this later, he really doesn't care.
Oh, and his own erection is practically dripping pre-ejaculate with excitement; he may or may not be subtly rubbing it against Don if they're close enough or the position of all this allows it.]