SDMU-035 A couple of average men and women found on a hot spring street immediately start the 'mixed bath monitor experience' upon meeting for the first time! How long does it take for this impromptu pair to ignite while bathing? 2

Due to its popularity, here comes the second installment! We randomly selected ordinary men and women in a hot spring town, luring them into a couples-only bath under the guise of a mixed bathing monitor experience. First meeting turns naked! Unable to resist, their penises stand erect. Will this couple, who are neither lovers nor a pair, ignite sparks during their bath? Estimated E-cup or larger!? We'll closely observe four big-breasted girls!