person enjoying the fruits of anything
• (n.) One who enjoys the profits, income, or increase of anything.
Fruc'tu·a·ry (frŭk'tu*a*rȳ) noun ; plural Fructuaries (- rĭz). [ Latin fructuarius .] One who enjoys the profits, income, or increase of anything. « Kings are not proprietors nor fructuaries .» Prynne. 
fructuary 1. Someone who enjoys the profits, income, or increase of anything. 2. A person who enjoys the 'fruits' of anything.