He shifted his legs apart with the nudge, but he also sought the Doctor's mouth out again for another slow, lazy kiss. He was not tensing up, he was not freaking out. At least not yet. Of course he wasn't thinking too far ahead of himself at this point either.
Honestly, anyone who could get through Virgin!Koschei could probably handle him. It couldn't be that different. In fact it was probablye asier.