Husband was away on a business trip for 3 days, then had an affair with Mizusawa Riko, who had sex with him until she was completely satisfied. (VEC-240)

Riko Mizusawa outwardly maintains a marital relationship with her husband, but she secretly seeks out her lover for sex when he's away. However, each time the sex isn't long enough, leaving her unsatisfied. This time, her husband is going on a business trip for three days, so she's seizing the opportunity to have her fill of sex!