There is no specific bust size for a size 18 woman. The average bust size for a size 18 woman is 109 cm/43 in.
size 18
38 inches
18/20
Just Like a Woman - 1912 was released on: USA: 18 April 1912
Just Like a Woman - 1923 was released on: USA: 18 March 1923
18 9,2 3,3,2
6/18 = 0.33...
You wi look like a singer.
18/5 = 33/5
Some young men(18-25), a long with teens and younger boys, can look like a girl simply by wearing girls clothes, letting their hair grow out, and NOT acting macho or manly. There is very little difference between boys and girls at those young ages. Enjoy that fact.
Maisota, Lands End, Zulily, Nordstrom, Zappo's, Amazon and Women Plus Dresses all carry black dresses in size 18. For a really good selection in size 18 always look for stores that carry plus sizes.