"Bas..." Zein tilted his head and ran his fingers down Bassena's wriggling back muscles. "Can't you do harder?"
The kisses on Zein's neck stopped when the esper raised his head and looked at Zein with a slight frown. "No--Doctor Nam told us to do it..." he paused and thrust slightly, "--moderately."
Zein groaned in frustration. Not that it wasn't good, but when you already knew how good the green-zone food was, the lower-zone food would feel tasty. He looked down with a frown, trying to twist his hip but got hold in place by the esper's strong hands.
Bassena was also feeling frustrated. Not that he wasn't satisfied, but he was full of concern. Zein was not as sturdy as before, and he was still trying to adapt to a body without mana. But trying to recall how he did it with someone else before meeting Zein felt like cheating, so he didn't want to do it, and before he managed to adapt, they found out about the pregnancy.