I’ve been married for 4 years and we haven't had a child yet. I've promised myself I won't cheat, so I only have regular sex with my husband and I engage in anal sex with my boyfriend. His favorite position is doggy style, but I avoid it because I'm afraid he might suspect I’m being unfaithful. My boyfriend also supports me financially, so I don't want to lose him, but I also don’t want to risk my marriage - Woman Shares