For One Night Stands, Girth Matters

For one-night stands, size does matter, but it's not penis length that women are concerned about — it's girth, a new study suggests.
In the study, 41 women viewed and handled penises made on a 3D printer. The models were blue, and ranged in size from 4 inches long and 2.5 inches in circumference to 8.5 inches long and 7 inches in circumference. They were asked to pick which of the 33 models they would prefer for a one-time partner, and which they would prefer for a long-term partner.
For one night stands, women selected penis models with slightly larger girth, on average, than those they selected for long-term relationships.
But there was no difference in length between the penises they preferred for one-time partners versus those they preferred for long-term partners: In either case, women tended to choose penises that were about 6.5 inches long. [8 Wild Facts About the Penis]
The vagina has many pressure-sensitive nerve endings that detect sensations of stretching, and these sensors may be finely tuned to detect variations in penis girth, the researchers said. A penis with larger girth may also bring the clitoris closer to the vagina during sex, which has been suggested to help with achieving orgasm.