Kimi wo Tsunaide Kiss Shite Dakishimete

Shino and Sumitaka have been dating eight months, but Shino hasn't been able to bring himself to take the last step in their sexual exploration. Shino finally gives in, and Sumitaka takes it upon himself to make sure Shino can't back out once they get started. But will Shino forgive his boyfriend when he wakes up restrained, chained to the bed? This oneshot is from Sweet - Ano Amai Amai Aji.