>>11334121
I kinda got it to work but I used e621 tags. Maybe the reference helps, even though the couple I got to look right are from a lower angle but the bulge looks correct. I think if you want any shaft at all, you should put it above the head to make it look like it's pointing down at the viewer

>penis, urethra, shorts, (penis towards viewer:1.2), testicles, (tenting, covered penis,:1.2) bulge,