DTKM-032 - Mother Swap: I'll give you my mom, so give me yours

This is top-tier quality even among this series. The highlight is how both mothers get all lovey-dovey in the second half. The son's girlfriend also appears, and there's a great scene where the mother asks, 'What time was the Shinkansen?' and when the girlfriend answers, she just stares at the son and freezes. After the girlfriend catches on and says she'll step out for 30 minutes, the lovey-dovey sex time begins. We haven't had such well-crafted works lately, so this was excellent.