OK episode mainly because some of the songs were good.
The sex plots seemed forced and too obvious at the same time. The intimacy doesn't have a realistic playful/serious context and just seems awkward and out of place. It would fit in better off screen and reported.
Plus, and I know they're just acting, but I didn't get much chemistry from either couple. Maybe I'm reading in but Blaine's reactions to the new guy, Sebastian, seemed to have more electricity than anything he mustered up for Kurt. Likewise, Blaine's interest and energy in his Gap crush some time back.
Still kudos for the hard work, some of which paid off.