Personally, I have very specific thoughts about the penis that would serve me best. Let me outline it all for you:
Size : equal length and circumference of 13.5 inches each, give or take 0.2 inches. I'm not too picky.
Color : rainbow with glitter, not the fake kind of glitter that comes off, gets all over your clothes and on your eyelids and you have to use spit to rub it all out. Just a shimmery, pretty, rainbow penis. Much akin to a unicorn horn, I'd say.
Head : Soft-ish but not too soft, more like the firm top layer of a cheesecake, when perfectly baked to a light golden brown.
Temperament: excitable, tempestuous, likely to spew at me under any circumstance, no matter how inconvenient the timing, or inappropriate the setting.
Any more penis questions, let me know, Mom.