'Curvy' may be something of a misnomer, but this base body has a fairly defined hip-waist area and narrow shoulders.
Legs
Magic circle 6 st
Inc each st (12)
SC 40 rounds (12)
Body
Continue from second leg
Chain 3, attach to first leg
SC round, 3 st in each side of chain (30)
SC 9 rounds (30)
(SC 8 dec 1) x3
SC round (27)
(SC 7 dec 1) x3
SC 2 rounds (24) (If you want to attach a skirt, BLO first of these rounds)
(SC 7 inc 1) x3
SC 2 rounds (27)
(SC 8 inc 1)
SC 6 rounds (30)
Fold top of body flat, mark each side. This will be where the shoulders are.
SC to near first mark, (dec 1 dec3tog dec1) using the marker as the centre. Repeat on other side (22)
SC to first shoulder, dec3tog, repeat on other side (18)
(SC 1 dec 1) x6
SC round till neck is desired length
Arms
Magic circle 6 st
(SC 1 inc 1) x3 (9)
SC 30 rounds (9)
Stuff and attach at shoulders