Bubbles blushed, a bit embarrased at having him touch her as she was having his cock partially buried in her hot, damp mouth. It seemed she had talent, being a "Perfect girl"´, maybe the proffesor was somewhat more perverted than people thought at first hand? Anyways she continued, bobbing her head back and forth at an incresing pace as she felt more comfortable, taking a little more inside as she went. Soon she had taken another inch, having about 60% of his length inside her mouth at a time. She couldnt help but make little moans, whimpers and slurping sounds, soemhow this actaully felt sort of nice, and she constantly had to start slurping as salive dribbled out on each side at times, warm, sticky spit running down his member onto his balls or getitng stuck in his pubic hair. She blushed as he seemed to really enjoy this much more than she had expected.