If "proper paper" refers to something specific—like a brand, a creative writing prompt, or a technical term—please provide more details so I can help you better!

: Studies on physical preferences often find that general preferences for things like "size" (which your "long" might refer to) are typically only slightly larger than average and vary by relationship type.

Women's Preferences for Penis Size: A New Research ... - PMC

: Many younger men report a preference for older women based on perceived maturity, sexual experience, and confidence.

: There are numerous niche websites, such as Milf-Job and Milf Finder, specifically dedicated to connecting people with mature singles.