Hand-guiding my young black buddy's precum-drooling fully erect gristly cock into my wife for his opening penetration of her has always been one of my erotic passions. In our regular threesomes,
My buddy---now my ex-wife'so husband--always fucks her in the missionary position, usually right beside me in our bed, so except during his swiftest and most impulsive opening penetrations of her it is very easy for me to clasp his cock and work the head of it between the always well-lubricated love-lips of my panting wife.
In full erection my buddy's cock measures just under 9 inches from pubes to cum-slit and has dramatic upcurve to it such that the head of it very nearly touches his navel when he brings his hips into position for his opening penetration.
The beauty of his cock then as it hovers and visibly throbs menacingly over my wife's pubes is wondrous to behold and begs my loving assistance to get it sheathed in her vagina.
At such moments my buddy totally loves the feeling of my guiding hand caressing and clasping the shaft of his gloriously erection, and always murmurs his gratitude and the escalation of his arousal that comes from his knowing that my trembling hand on his cock is a erotically the most tangible sign of my huge love for him and powerfully reaffirmative of my fateful decision of 2 years ago to grant my wife a divorce in order for him to marry her.
The feeling of his advancing cock deliberately pausing in its first foward thrust for my buddy to make it brace muscularly in my handclasp as the head of is at last beginning to stretch the deliciously nubby folds and furrows of my wife's inviting well-lubricated vagina, is for me the quintessential sign of my buddy's abiding love and concern that I get as much pleasure as possible out of his fucking my ex-wife as perfectly and manfully as he always does.