No, my wife usually don't make eye contact with me when her lover fucks her pussy or ass, or when she suck him. Actually, I think I have more eye contact with her lover then my wife when he fucks her (you know, like exchanging appreciative grins, smiles and maybe a comment about how good her pussy or ass is, like two men fucking one woman often do...). I don't know why, but my wife not having eye contact with me gives me the horny feeling that she belongs to her lover, that my wife is totally his woman and I really loves that feeling.
I guess that it's not natural for her to look at me while she is enjoying another mans cock inside her, I mean, most of the time her eyes are closed and her face is dissolved in lust, arousal and pure pleasure anyway when her lover fucks her and as I said, I like that 🙂