Mommy sex can be quite an amazing topic for edging your cock to. As a therapist I have played many roles. In fact I am greatly in favor of incestuous relations. Sometimes it is great to just build up that cum.
And as an afterthought a ruined orgasm might be just the thing a mommy would do for her son. To walk in on you stroking that cock to high heaven. There you were controlling the urge to cum. And, then, mom comes right in the room.
Obviously mom will likely get an eyeful. Staring at that cock while your freeze. Oh, perhaps your mother just can’t look away. And bam without any self control…. There it is… that ruined orgasm and all of your work escaping your cock under mothers stern gaze.
Well, if that has ever happened to you, you surely would not be the first one!