Judging by what speed is wearing, we can confidently say that speeds wearing are unisex size M or L Nintendo pajama pants looking online you can determine that pants like that are usually have a inside leg size of 29 (M) or 30 (L).
looking at photo 4th you can see that the bit speed showed was around 6.5 x the size of his p**is, so his soft/semi-hard p**is size is: 29 / 6.5 = 4.4 inches 4.4 += 0.5 inches for lost dick size under pajamas 4.9 inches soft/semi ~ hard
to determine his hard/max size, i found a quote on a medical artical about p**is sizes and the diffrence between growers and showers: "The propensity for a p**is to grow is directly proportional to how far you can pull it away from the body (i.e. how stretchable the collagen fibers are within the skin of the p**is). Growers tend to have a significant increase — approximately 50 percent — stretched. Showers will hardly stretch at all."
with this, we can calculate that: 4.9 inches * 1.5 = ~7.35inches (if speed is a grower) ~5.1 to 5.4 inches (if speeds a shower)
