He spread his foreskin so that I could slip my glans into the dark, deep, wet, warm tunnel it created. As the head of my cock kissed his the commingled precum made a great lube.
I grabbed our conjoined cocks and slid the foreskin back and forth, stimulating both cocks in one motion. Our timing was perfect. As my cock swelled in anticipation I felt his cock explode in a shower of cum. I groaned and stiffened. I shot a massive load that filled the empty space in his foreskin. The volume of cum was too much. Some of it leaked out of his foreskin and drooled to the floor.