scripted please, (as in cumshot, sheathed, semi-erect, erect and 'painful mode' with the spikes with blood)
anyway in need of just a custom penis
basically it is a combination of a wolf/tiger and kangaroo
meaning the tip has sharp spikes around it, a knot at the base and the balls are above it, not below it

side view ; http://d.facdn.net/art/vinnieocello.....lo_tttdone.jpg