他们通过视频聊天进行虚拟性爱来保持亲密关系。

They maintain intimacy by having ___cybersex over video chat.

一些情侣通过视频聊天进行虚拟性爱来保持异地恋的亲密感。

Some couples maintain intimacy in long-distance relationships by having ___cybersex through video chats.