The ornamental design for a sextoy, as shown and described.
FIG. 1 is a perspective view of the sex toy showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a partial enlarged view of portion 8 in FIG. 5.
The evenly spaced broken lines shown in FIG. 6 is for the purpose of illustrating a portion of the sex toy, which forms no part of the claimed design. The dash-dot broken lines shown in FIGS. 5 and 8 are for the purpose of showing enlarged areas and form no part of the claimed design.