One way to hold this word: pleasure so full that the body feels it. Not a thin, polite liking — something generous, slow and a little too much, coming in through the eyes, the nose, the skin. Whatever the word touches, it says two things at once: this is rich, and someone is enjoying it. That second half never drops away, which is why the word always carries the describer as well as the thing described.
The packet's source entry traces voluptuous through Middle French voluptueux to Latin voluptuōsus ("delightful"), from voluptās ("pleasure, delight"), from volup ("with pleasure"). So the pleasure is not an extra layer on top of the word — it is the root itself, and the body uses grew out of it.
證據裡的來源把這個字追到中古法文 voluptueux，再到拉丁文 voluptuōsus（令人愉快的），字根 voluptās 是「快樂、享受」，更上面是 volup「帶著愉悅地」。所以「享受」不是後來加上去的一層，它本來就是這個字的根。身體相關的用法，是從這裡長出去的。
Wiktionary (kaikki extract supplied in this packet, source_ref kaikki:3f6f69a190036ae4:584829304:21526): "From Middle French voluptueux, from Latin voluptuōsus ('delightful'), from voluptās ('pleasure, delight'), from volup ('with pleasure')."
Two branches
東西給的感官享受
這一族最貼近字根：對象是東西，不是人。花園的香氣、濃湯、厚地毯，享受從感官進來。來源把這個用法標成 literary，所以它多半出現在寫得比較美的文字裡。
adjective · C2
Used about a thing: so rich and pleasant to look at, smell or taste that enjoying it feels almost physical. The source marks this use as literary.
感官上豐美的
人身上的豐滿與情慾
同樣一份「滿到身體有感覺的享受」，把對象換成人。有時落在身形上，有時落在動作和聲音上。兩個用法都保留了核心裡的那個欣賞者，所以這個字用在人身上時，永遠帶著說話者的眼光。
adjective · C1
Used about a woman's body: full, soft and rounded, with large breasts. The word also says that the speaker finds that body attractive.
豐滿有曲線的