4 Piece Sinful Sister Costume
$63.99
4 PC Sinful Sister Costume, Includes Vinyl Romper, Rope Belt, Collar, and Nun Habit
| Color: | Black |
|---|---|
| Size: | Large, Medium, Small, XL |
| Material | Polyester |
| Brand: | Leg Avenue |
| Audience | Women |
A sister costume that makes private pleasure fun, easy, and completely yours.
The Leg Avenue 4 Piece Sinful Sister Costume is a flirty, themed costume built for nights when you want to slip into something playful and own every moment. This sister costume arrives as a complete set — no guesswork, no missing pieces — so the only thing left to do is enjoy it.
Sister Costume Features & Specifications
Everything included in this Leg Avenue themed costume, from the complete 4-piece set to the flirty lingerie-style finish.
Complete 4-Piece Set
- Full themed costume in one package
- No separate pieces to hunt down
- Ready to wear right away
Flirty Themed Style
- Sinful sister aesthetic from head to toe
- Designed for costume play and fun nights
- Lingerie-style cut and finish
Lingerie-Inspired Design
- Fits the Leg Avenue lingerie tradition
- Flattering silhouette for confidence
- Styled for intimate occasions
Giftable & Discreet
- Ships in a plain brown box
- Perfect discreet gift for any occasion
- Discreet billing on every order
Leg Avenue Quality
- Trusted name in themed costume lingerie
- Premium quality construction
- Consistent sizing and finish
Material & Care
- Hand-wash cold for best results
- Air-dry flat to preserve shape
- Store folded in a cool, dry place
Sister Costume User Guide & Play Styles
Wearing this sister costume for a themed night in
Private pleasure should feel fun — and this sinful sister costume delivers exactly that. Slip into the full Leg Avenue set for a solo confidence boost or a themed night with a partner. The lingerie-style cut brings a wave of playful sensation the moment you put it on, making the experience feel intentional and exciting. For more themed costume options that match this energy, explore the themed lingerie collection or browse the full lingerie pleasure range. Hand-wash cold after wear to keep the set looking its best.
Gifting a sister costume — what makes this set work
This Leg Avenue sister costume is one of the easiest themed costume gifts to give. It arrives complete — a 4-piece set with no guesswork — and ships in a plain brown box with a discreet billing descriptor, so the surprise stays intact. Whether you’re shopping for a playful occasion or just want to add something flirty to your personal wellness routine, this sinful sister costume hits the mark. The intimate confidence it delivers makes it a standout choice in the themed costume category.
More Themed Costumes from Leg Avenue
Love the sinful sister look? Leg Avenue offers a full range of themed costume lingerie styles — from classic to daring — all shipping discreetly to your door.
⚡ 3-Day Delivery
🎖️ Veteran Owned
🧪 Body-Safe Materials
Discreet Toys is veteran-owned and operated. Every order ships in a plain brown box with a discreet billing descriptor — your privacy is the priority from checkout to doorstep. Questions about your order? Our returns & refund policy covers the details. Free shipping on orders $69 or more.
It’s only freaky the first time.
Last updated · May 30, 2026
Women's Size Chart
| Size | Dress Size | Bust | Waist | Hip | Torso |
|---|---|---|---|---|---|
| XXS | 00-0 | 29-31" | 23-24" | 32-33" | 26-27" |
| XS | 0-2 | 32-33" | 24-25" | 34-35" | 26-27" |
| S | 4-6 | 34-35" | 26-27" | 36-37" | 27-28" |
| M | 8-10 | 36-38" | 28-29" | 38-39" | 28-29" |
| L | 12-14 | 39-40" | 30-32" | 40-42" | 28-29" |
| XL | 16-18 | 41-42" | 33-35" | 43-45" | 30-31" |
| OS | 2-12 | 34-40" | 26-32" | 36-42" | 26-30" |
| S/M | 2-8 | 34-37" | 26-28" | 36-38" | 26-28" |
| M/L | 8-14 | 38-40" | 29-32" | 39-42" | 28-30" |
Women's Plus Size Chart
| Size | Dress Size | Bust | Waist | Hip | Torso | Cup |
|---|---|---|---|---|---|---|
| Queen | 16-18 | 42-43.5" | 33.5-35" | 43.5-45" | 31-32" | C-D |
| 1X/2X | 16-20 | 43-47" | 36-38" | 43-47" | 31-32" | D-DD |
| 3X/4X | 22-26 | 48-52" | 39-42" | 48-52" | 31-32" | DD+ |
Hosiery Size Chart
| Size | Height | Weight | Thigh Width |
|---|---|---|---|
| One Size | 4'11"-5'9" | 90-165 lbs | N/A |
| Queen | 5'0"-5'11" | 150-220 lbs | N/A |
| 1X-2X | 5'2"-6'0" | 180-240 lbs | N/A |
| 3X-4X | 5'3"-6'0" | 235-275 lbs | N/A |
| S/M | N/A | N/A | 21"-22.5" |
| M/L | N/A | N/A | 23"-24.5" |
Men's Size Chart
| Size | Chest | Waist | Inseam |
|---|---|---|---|
| S | 34-36" | 28-30" | 31-33" |
| M | 38-40" | 32-34" | 31-33" |
| L | 42-44" | 36-38" | 31-33" |
| XL | 46-48" | 40-42" | 31-33" |
| S/M | 36-38" | 28-32" | 30-31" |
| M/L | 40-44" | 34-38" | 31-32" |
| OS | 46-62" | N/A | N/A |
How to Measure
- BUST
- Measure around the widest point of your bust area.
- WAIST
- Measure the narrowest part of your natural waistline — about 1 inch above your belly button.
- HIPS
- Measure around the widest point of your bottom.
- TORSO
- Measure from the top of one shoulder diagonally across the fullest part of your bust to the bottom of your torso.
Stand straight with your feet together and body relaxed for accurate measurements. Measure twice for accurate results.
The size chart is a general guideline for average measurements. Sizes will vary depending on design, cut, style and fabrication. Most items fit true to size unless otherwise noted. If you are between sizes, we suggest sizing up. Reference sizing courtesy of Leg Avenue.
Free Shipping
on Orders $69+
Or any product with a HOT label — automatic free shipping, no code needed. Plain brown box. Discreet billing. Delivered in 3 business days via USPS Priority.
Plain Brown Box
No logos, no graphics, no product names on the outside. Looks like any other package.
Discreet Billing
Our business name — not "Discreet Toys" — appears on your card statement.
3-Day Delivery
USPS Priority Mail. Tracking number emailed the moment it leaves our warehouse.
How Your Order Arrives
Order Placed
Checkout in under 60 seconds
Packed Discreetly
Plain box, no markings
USPS Priority
Tracking emailed to you
At Your Door
3 business days, average
Veteran-Owned & Operated
Every order packed by our small team in Tampa, FL. Your privacy is our priority — from checkout to doorstep. It's only freaky the first time.

