Plus, the closeness such an activity engenders (we hope) strengthens your immune system.

此外，这种亲密的两性互动行为还会增强你的免疫系统。

youdao

Plus, the closeness such an activity engenders (we hope) strengthens your immune system.

此外，这种亲密的两性互动行为还会增强你的免疫系统。

youdao