He told me his story:
Scene: alone, in room, no computer, pics nor magazine
Status: soft, no hard on.
Equipment: small cup
Procedure: unzip, put his brother onto cup lightly, no pressure,
movement nor contact, kept still, 3min to hard on without contact,
another 4min felt like 'urinating', then normal amount of liquid
obtained into cup.
Feeling: satisfied
After thoughts: just curious to try something new, in future he
won't do such thing again, promised.