Shitai x Shitai x Shitai (舌入×シたい×慕い)

Our protagonist has just finalized a divorce and his ex-wife left him custody of their step-daughter, Chizuri. One day while he was visiting her room she stopped him, asking for him to spend some time with her. Since she had been rather cold to him until this point, he obliged. Their time together turned to touching, then to kissing, then…