"Don't fall asleep on me," Sulu teased quietly, not really believing Ianto would pass out right then. He leaned to nip at Ianto's earlobe, sucking on hit briefly before rolling his hips again, his one hand sliding between them to work on the buttons of Ianto's shirt. His other hand reached to run through Ianto's hair, using his blunt nails against his scalp to keep the motion from being just another way to help Ianto get to sleep. He wanted to keep the other with him, that was for sure.