Hame Zakari no Natsu.: Muchimuchi Wet Suit Joshi ni Zecchou Shidou

She's polite and reserved, but when I see how the wetsuit clings to her flushed skin and perfectly plump body...I can't stop thrusting!
(Source: Coolmic)
Note: Simultaneously released in long-strip and traditional formats, with 9 and 3 chapters respectively.