He moans, "I love you too" between thrusts, feeling so many overwhelming feelings in his body and heart whenever he gets to be with Lan Wangji in this way. but even when they are simply in each others presence, all he knows is that his entire being is loved and feels love. He doesn't want that to ever change.

His body rocks with those thrusts, the feelings bubbling up inside of him as the pleasure surges.